The South Shetland Islands follow Greenwich Mean Time +12 (GMT +12). This means that if it is 9:00 GMT +12 (9 a.m.) during your trip to the South Shetland Islands, it would be the previous day at 17:00 (5 p.m.) in New York City, USA and 22:00 (10 p.m.) in London, U.K.. The South Shetland Islands officially have the same time as the Antarctic South Pole. During an expedition cruise to the South Shetland Islands and the Antarctic Peninsula, the ship will be using Argentinean time (GMT -3).